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#1
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I want to say that the unit hasn't been plugged in for years and a capacitor caused the resistor to overheat. Often after some time working capacitors will reform and work normally if they don't short or take out something expensive like a transformer. The best thing to do in all cases with old equipment is to bring them up in steps with a variable voltage source.
A Variac or equivalent and an isolation transformer are a must if you are going to work on electronics old or new.
__________________
"Face piles of trials with smiles, for it riles them to believe that you perceive the web they weave, and keep on thinking free" |
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#2
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R43 runs hot on my 467 - always has....
I have other problems with mine - each meter pulses while checking a CRT. I haven't recapped or done much troubleshooting. I upgraded to one of dad's 470s (he had EIGHT!), and have shelved the 467 for now. My 467 came from a Public Surplus Auction - bought out an entire VoTech school's TV Electronics program, about 45 pieces of test equipment for ~$250, and the 467 was among all of the equipment.
__________________
Brian USN RET 22YRS (Avionics/Cal) CET-Consumer Repair and Avionics ('88) "Capacitor Cosmetologist since '79" When fuses go to work, they quit! |
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#3
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Quote:
Thanks. That's the info I was looking for. I did order all new E-caps and I'll replace them when they arrive later this week. I'll post an update when they are replaced. |
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#4
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I replaced all the E-caps tonight. R43 still runs hot. I got a service manual off the Internet and checked some voltages at some TP's. Most were a little low. After the recap, some stayed the same while others got a bit higher and some came right into spec. I put it all back together and touching the face, it's not even warm even thought R43 still is hot. BTW, in the service manual, it had a few calibrations to make and they all cal'd OK.
Now I need to get a CRT to test the tester! |
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#5
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Well I got a small color 9" TV and tested the CRT with my re-capped 467. The 467 showed the CRT to be very good. However, like a post or 2 above the needles "pulsed" while checking the emissions. Other than that all went well.
Thanks. |
| Audiokarma |
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